The Point Cook house at the centre of the Sarah Cafferkey murder investigation is rented by two men — one of whom is believed to be a suspect.

However, Victoria Police have requested that the names and photographs of the men not be published.

Fairfax spoke to the employer of one of the men this afternoon and was told he had called work this morning and said he "wouldn't be in today."

22-year-old Sarah Cafferkey.

Police would not confirm reports that a yellow Commodore had been linked to the investigation.

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Detective Inspector Michael Roberts from the homicide squad said the identity of a body found at the home raided by police during the investigation had not been confirmed yet, ‘‘but we certainly believe it is Sarah Cafferkey’’.

‘‘The investigation is still at a fairly early stage,’’ he told radio station 3AW.

‘‘I don’t really want to go into specifics of the investigation because it actually may affect the outcome.’’

Detective Inspector Roberts also would not say whether police had spoken to the residents of the Fongeo Drive house.

‘‘The Point Cook address is still being examined by our forensic people, and they’ll probably be there for some time, so obviously we’ll be waiting for the results from that,’’ he said.

‘‘We’re still waiting for the results of the identification of the body that was found on Saturday evening.’’

Detective Inspector Roberts said that the public may be able to help track Ms Cafferkey’s movements.

He said some may have noticed unusual occurrences in the area around the Point Cook home, including ‘‘odd comings and goings at various times of night’’.

Detective Inspector Roberts said there were ‘‘a number’’ of indications that had led police to believe Ms Cafferkey had met with foul play.

‘‘This is a murder investigation,’’ he said.

Police have been shown messages from a man that were posted on Ms Cafferkey’s Facebook page before she disappeared on November 9. She was last seen by her family at home in Ross Street, Bacchus Marsh.

Police are continuing to examine Ms Cafferkey’s Facebook page, he said, but added that her former boyfriend ‘‘was not a suspect’’.

Homicide detectives found the body when they searched the Alamanda estate home early on Sunday.

It followed the discovery of Ms Cafferkey’s car, a 2001 Astra sedan with the registration OOH SEZ, on Thursday night in Owen Street, Maribyrnong.

Anyone with information is urged to call Crime Stoppers on 1800 333 000.